Two new species of the families Polyxenidae and Synxenidae, are described from Table Mountain National Park, South Africa. Propolyxenus squamatussp. n. (Polyxenidae) has tergites I-X mostly covered by scale-shaped trichomes directed caudally, a character previously known only in Synxenidae. The structure of scale-shaped dorsal trichomes is different to that of the scales in Phryssonotus and Con...

This paper deals with the pharmacognosy of Hyptis suaveolens leaf including its morphological, anatomical, chemical constituents and powder analysis. Contrary to earlier reports, the leaves are amphistomatic. Stomata are diacytic, a few being isotricytic and ansiotricytic. Four types of trichomes have been noted. The venation is semicraspidodromous. Midrib consists of one large moon shaped and ...

Trichomes are structures that cover the surface of plants with hair-like and found in a large number either unicellular or multicellular forms. one important elements plants, because their presence can be used to identify species based on appearance, size, type, content compounds them protect environment from various kinds pollutants. Road shade planted side road function absorbing The purpose ...

Two techniques were tested to determine if they would be suitable for detecting differences between plants grown with or without silica. Soybean (Glycine max) and wheat (Triticum aestivum) leaves were inspected using microscopes to look for structural differences on trichomes and leaf surfaces. Wheat leaves were weighed over time to determine the leaf desiccation rate, which was then compared a...

The present survey of leaf-blade trichomes Mendoncia used SEM and light microscopy to investigate the diversity trichome types in Neotropical Paleotropical species genus. eglandular are filiform, uniseriate, with asymmetric epidermal cells arranged radially around trichome, these may be short or elongated, oriented two groups. These cells, when covered epicuticular wax, forming smooth thick pla...

Large and diverse genera, such as Silene need more reliable morphological traits for the credible identification and delimitation of the species. Despite the fact that the type of indumentum among the species of Silene had been addressed in most available revisions, monographs and floristic studies, the trichome-based features and their adaptational importance have not been investigated explici...

Amblyseius swirskii is a predatory mite widely used for the control of very important pest species, such as whiteflies and thrips, in organic farming conventional agriculture. However, this species cannot establish on tomato crops, probably due to toxic effects plant trichomes their exudates. We evaluated plants on: a) A. preference mediated by volatiles, b) development, predation capacity repr...